Undercut saw



FIG. 1 of the drawings is an isometric view showing the top, front, andright side of an undercut saw embodying the design of my invention;

FIG. 2 is a side view showing the right side of the undercut saw;

FIG. 3 is a front view;

FIG. 4 is a top view;

FIG. 5 is a side view showing the left side view;

FIG. 6 is a rear view; and,

FIG. 7 is a bottom view.

I claim the ornamental design for an undercut saw, as shown.